Umeko - Feast Wars OC

Yes, another protagonist OC, this time from Feast Wars, which is basically Keijo with fat girls, but with different rules, well, here's her info:

Statistics
Name: Umeko Saitou
Nickname: Battery
Age: 21
Weight: 480 lbs
Favorite Food: junk food in general
Rank: D
Bumper Type: Counter Type

Appearance:
Umeko has a very long wavy blonde hair, sea blue eyes and a obese build with large features. On the pool, she wears a light blue 2 piece battery themed swimsuit

Personality:
Umeko is a kuudere hikikomori, she isn't emotive and almost never smiles, althought her school grades were always horrible, shes a genius when calculating immediate actions that requires reflex, executing them perfectly. She spends all her day playing games and eating food that her twin brother makes
As soon as she gets more and more used to the outside, she gets more extrovert, making jokes after jokes but still maintaining the kuudere personality, she gets somewhat jealous when her brother is flirting with other girls and her brother fears when she gazes at him at this state

Strenghts:
Umeko has an incredible dexterity, shes capable of catching or dodging things almost perfectly, using her own weight for her favor, being able to perform athletic moves like backflips

Weakness:
Umeko doesn't know how to build a good defense, althought she can counter most of the bumps, she lacks posture and weight noction when held down, being easily knocked off

Powers:
Umeko has the power of creating electricity from her body

Shock (Butt): Umeko butt begins to charge electricity, increasing her speed, attack force and has a chance of paralizing the target when clashing butt with butt

Vibration (Belly): Umeko jiggles her belly at an extreme speed, vibrating her body and charging her energy, making her stronger

Magnet (Boobs): Umeko jiggles her boobs from left to right, attracting the other girls boobs to her, this is activated automatically, depending of how much Umeko moved from left to right

Trivia:
-Umeko twin brother is named Uryu
-Umeko and her twin brother lives alone, its unknown if their parents are still alive
-It's unknown if she has a left eye, since its always hidden and her twin brother never ever saw it
-Umeko doesn't know how to swim, even though she has a large pool in her own house
-Umeko was skinny and quickly became fat in her school days, her current build has double of her past weight